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Substitute Milk + lemon juice or vinegar for Buttermilk

What buttermilk does in a recipe: Adds acidity and tenderness; its acid activates baking soda for lift.

Milk + lemon juice or vinegar

per 1 cup buttermilk

US1 Tbsp lemon juice or white vinegar + enough milk to reach 1 cup; rest 10 min
Metric240 ml milk + 15 ml acid
Pantry stapleBaking-safe ✓Gluten-freeEgg-freeNut-freeSoy-freeAlcohol-freeSesame-freeContains dairy

The acid curdles the milk, mimicking buttermilk's tang and soda-reactivity.

What changes: Slightly thinner than real buttermilk

Best for: Any recipe calling for buttermilk

Where Buttermilk is the substitute: substitute Buttermilk (in batters/marinades) for Plain yogurt

More options: all 4 Buttermilk substitutes

Common questions

What is the ratio for substituting Milk + lemon juice or vinegar for Buttermilk?
per 1 cup buttermilk — US: 1 Tbsp lemon juice or white vinegar + enough milk to reach 1 cup; rest 10 min. Metric: 240 ml milk + 15 ml acid.
Why does Milk + lemon juice or vinegar work as a Buttermilk substitute?
The acid curdles the milk, mimicking buttermilk's tang and soda-reactivity.
What changes when you use Milk + lemon juice or vinegar instead of Buttermilk?
Slightly thinner than real buttermilk

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